the mordant in the gram stain procedure is
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Nursing Elites

NCLEX-RN

NCLEX RN Predictor Exam

1. In the Gram Stain procedure, which component acts as the mordant?

Correct answer: C

Rationale: In the Gram Stain procedure, the mordant is Gram's Iodine. The purpose of the mordant is to form a complex with the crystal violet, enhancing its ability to bind to the cell wall. Crystal violet is actually the primary stain used in the Gram Stain procedure to initially color all cells. Methyl alcohol is the decolorizer that removes the crystal violet from certain cell types. Safranin is the counterstain used to stain those cells that did not retain the crystal violet stain after the decolorization step.

2. After receiving change-of-shift report, which patient should the nurse assess first?

Correct answer: B

Rationale: The correct answer is the patient with possible lung cancer who has just returned after bronchoscopy. After bronchoscopy, the patient may have decreased cough and gag reflexes, necessitating immediate assessment for airway patency to prevent potential complications. The other patients do not exhibit urgent clinical manifestations or have undergone recent procedures that require immediate attention. Therefore, they can be assessed after ensuring the safety and stability of the patient who has just returned after bronchoscopy.

3. A client is undergoing range of motion exercises, and the nurse moves the leg in a pattern of circumduction. Which movement is the nurse performing?

Correct answer: C

Rationale: Circumduction involves moving a limb in a circular pattern. In this scenario, the nurse is performing circumduction by moving the leg in a circular motion, engaging the muscles of the gluteus maximus and gluteus medius. Choice A, 'Bending the leg at the knee,' is incorrect as it describes flexion and extension movements. Choice B, 'Turning the foot inward and outward,' refers to inversion and eversion movements of the foot, not circumduction. Choice D, 'Moving the leg forward and up,' describes flexion and abduction movements, not circumduction.

4. During an assessment, a nurse asks a patient, "If you had fever and vomiting for 3 days, what would you do?"? Which aspect of the mental status examination is the nurse assessing?

Correct answer: B

Rationale: The nurse is assessing cognition in this scenario. Cognition involves evaluating a patient's judgment and decision-making abilities. By asking the patient what they would do in a specific situation, the nurse aims to determine the patient's cognitive function. A correct response indicating intact cognition would involve a decision like 'Call my doctor.' If the patient suggests inappropriate actions like 'I would stop eating' or 'I would just wait and see what happened,' it would suggest impaired judgment. The other options, behavior, affect and mood, and perceptual disturbances, refer to different aspects of the mental status examination and are not directly assessed through this question.

5. Which of the following activities would the nurse perform during the diagnosing phase of the nursing process? Select all that apply.

Correct answer: B

Rationale: During the diagnosing phase of the nursing process, the nurse analyzes the collected data to identify problems, risks, and client strengths, which then leads to developing nursing diagnoses. Collecting and organizing client information is part of the assessment phase, where data is gathered. Developing nursing diagnoses comes after data analysis in the diagnosing phase. Goal setting is a component of the planning phase, which follows the diagnosing phase.

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